Centrifugal ore-separator.



P. F. PEGK. CENTRIFUGAL ORE SEPABATOR. APPLICATION FILED SE21. 17,1908.

917,12Q, Patented Apr. 6, 1909.

4 SHEETS-SHEET 1.

P. F. PEGK. v GENTRIFUGAL ORE S EPAEATOR.

APPLICATION FILED SEPT 17, 190B.

Patented Apr. 6, 1909.

1 EHEETS-SHEET 2.

Him

R F, PEGK.

UENTEIFUGAL ORE SEPARATOB.

APPLIOATION FILED SEPT.17,1908.

Patented Apr. 6, 1909.

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' Specification oi Le .ters Patent.

Patented April 6, 1909.

Application filed September 17, 1908. Serial No. 453,527.

- T all whom it may concern:

-The objects of my invention are to construct an improved separatoremploying it is discharged from the vessel.

centrifugal force in separation of particles of waste and value inpulverized ores while mixed with liquid, of the general type illustratedand described in my application for United States patent Serial No.444,787, filed July 22, 1908; application Serial No. 453,526,

filed September 17, 1908,, and application Serial No. 456,060, filedOctober 3, 1908.

In the accompanying drawing Figure 1 ismainly a transverse verticalcentral section of my separator. Fig. 2 is a top plan view of myseparator. Fig. 3 is an outside elevation of the upper half or thedeflector member,-

removed from the separator. Fig. 4 is principally an enlarged transversesection of the left sideof a fragmentary part of the de flector vesselwall, the expansion element, one of the channel rings and theirconnecting conduits as shown in Fig. 1. Fig. 5 is principally anenlarged top plan of the cam and its driving mechanism detached from theseparator. Fig. 6 is mainly across sectional detail of the left side ofthe launder anda partof the left side of the discharge enlargement ofthe separator vessel, both as illustrated in Fig. 1, showing the launderin a central position of elevation to catch the middlings product asFig. 7 is similar to Fig. 6 except that the launder is illustrated aselevated to its maximum position to catch concentrate as it isdischarged from the separator vessel. Fig. 8 is partly a side elevationand partly a vertical cross section of a modified form of an expansibleelement, in a state of expansion.

. Fig. 9 is a cross section of Fig. 8 on line 9-9 of Fig. 8, looking inthedirection of the ar rows. Fig. 10 is an enlarged transverse verticalsectional detail of the central part of the.

wall of the deflector vessel and some of its internal parts with aportion of the expansible element at this point shown in operatingposition; expansion liquid also being -shown present. Fig. 11 is anenlarged transverse vertical section of the upper and lower portions ofa side of the deflector vessel and some attached parts, With thelexpansible element in lace in a state ofv expansion.

111 me ing my improved centrifugal ore separator, 'I provide a' memberhaving a v separatin surface, which member I have illustrate in the formof a vessel A, with a closed bottom and-substantially open top, and maybe termed a treatment vessel. This vessel is preferably of a double orcomposite nature made of substantially upper and lower halves, aiid thetwo halves dieing fastened to other near the center as hereinafterdescri ed.

The bottom of the treatmentvessel has a central hub B, that rigidlyengages a shaft C, which is mounted in journal boxes D and D,respectively, to support it vertically. The journal boxes are attachedto a suitable general supporting frame E of the separator, and thelower-end of the shaft is stopped in an anti-friction bearing-F'to carryits weight.

both the upper and lower halves afford iiidependent separating surfacesG and G separated pass, as hereiiiafter described.

The rim or edge of both halves of the vessel around its largest diameteris flan ed outward as shown, and indicated by l which flanges have anannular recess at their outer flanged parts of the ring I, are seated.These flanges on the ring I being greater in width than the depth of theannular recesses in the flange H there is left between the ring and theflange when these parts are in place an annular space .1.

enough to extend inward toward the c'ntet of -the vessel, some distance,thereby-partly closing the two halves of the treatment, vessel withrespect to each other which revents water or other liquid and materialto e'separated from flowing from one half of the vessel into the otherwhile in operation.

the walls of the two halves Whic form the separating surfaces, beinginclined outward middle; vessel is pi'ovi he u per end of the top halfof the I did with a ring or V flange K edges around into which therespective from their respective feed ends toward the The vessel A isturned smooth and con- 1 centric to the shaft 0, and the inner Walls ofrespectively, over which the substances to be j The main part of thering I ismade wide The vessel is preferably made of greatest diameter atits central portion lon itudmally,

17 which operates with respect to that particular chamber may beadjusted on its rod independently to permit a deeper accumulation ofexpansion liquid for that chamber, and vice versa. 1

During operation of the separator the vessel or member carrying theseparating surfaces is revolved at a desired rate of speed by a suitablebelt (not shown) passing around the pulley 46, from any suitable sourceof motive power, and the deflector is revolved at a s 'u'liicient speeddifferential to the separating surface, to transmit through theinstrumentality of the liquid in the separating passage a liquidscouring or washmgiriction on the separating surface, or material thatmay be thereon .to facilitate separation desired. As the operation ofthe separator proceeds, and the separated-material accumulates in a bedon theseparating surface, filling the separating passage to that extent,the outer or scooping ends of the conduits 17 being gradually moved.outward by the. cams and associated mechanism bereinabove described, andgradually lessening the accumulation of expanding liquid from thechannels '11 permitting the flexible element S to be graduallycontracted until. a desired quantity or'load has bedded in theseparator. By this time the cams have revolved a sullicient distance tobring the crooked. part 21 and 22-of the rods into position on the camsto'be quickly moved and swing the outer ends of the scoop conduitsinward, and again permit the maxi mum desired accumulation of expandingliquid in the channels 11.

As means for separately catching the several products discharged fromthe separator, l have-supplied. an annular launder or trough 47providedwith several compartments .8, having independent annular open.-ings, around. their upper parts, which are of proper size and spacingwith relation to the two rows othollow discharge nipples 19 and 50 sothat at the same time there will be one of the openings in radialalinement with each of the rows of discharge nipples to catch theseparate products therefrom, and there will also be one of the-severalannular openings interposed between those two rows, and so when thelaunder is properly shifted up or its lowest operating position. .in itsmedium position, and m Fig. 7 in its shaft 56 havingworms 57 and 58meshing with the Worm wheels by which said Wheels are revolved whendesired, to raise or lower the launder;;the shaft is provided withasuitable crank 58 serving as a handle by which to turn it, although anyother suitable means maybe employed to revolve the shaft.

- W'hile operating, if it is desired that one half of the separator bein process of loading or affecting separation while the other half isunloading or discharging accumulated con-v centrates and vice versa, thefeed pipe delivery into the teed chamber for the separating surface onwhich separation is progressing, is at this time supplying material (forseparation, and the water in the expansihle members operating withrespect to this surtace 1s then being governed to secure desiredintensity of washing friction for sepa ration, while at this time cleanwater is being introduced mto the feed chamber of the separating surfacewhere unloading 1S erogressing, and the water to the expansible memberfor this separating surface is regu lated to produce a sufficientlygreater or more intense washing friction to effect the removal andunloading of the concentrates that havepreviously been bedded on thisseparating surface and in its separating passage.

It will be understood that the branch pipes 59 and 59 are adapted tosupply clean water into their respective pipes and 6, as desired foruses hercinabove explained.

In Fig. 1 the expansible element on the upper half of the deflector isillustrated in a state of expansion, while in the lower half it is in acontracted state.

When t he concentrates have been removed from this latter passage andthe other sepa-i rating surface has been sufficiently loaded or beddedwith concentrates, the flow of mate rial for separation to the latterpassage'is stopped and. clean water is supplied instead, and alsogreater expansion pressure is obtained for effecting removal ashereinabove described, the launder 47 having been propcrly relativelyadjusted. At the same time material may be introduced for separation onthe surface frpm which the concentrates have; just been discharged, theproper expansion conditions for separation beingautomaticallyestablished as has been hereinabove described.

In Fig. 1 I have illustrated the'launder in In Fig. 6 it is highest ormaximum operating position.

In Figs. 8, 9, 10 and 11' I have illustrated a,,modification wherein Imake the expansion element of my separator in the form or nature of atube, the Walls being'iormed with double or multiple layers relativelyunadhex-ed throughout part of their area, which 1 have here initialed60, the tube being of suf- 'ficient diameter and of shape to slide overthe outerdiameter of the supporting element or deflector vessel 61,instead ot a tube wrapped around the supporting element 61.

;This form is illustrated removed from the de- 'fiector,vessel inFig. 8.

When the deflector vessel is made in two main gures of the drawings andthe different parts are intended to operate with respect to'difierentseparating surfaces, there is preferably an ex ansion element providedof' suitable size an shape for each of the two parts of the deflector.This expansible elel5 ment is preferably formed having walls with doubleor multiple arts in the nature of unadhered layers, wa s as above statedof prefera bl substantial water-tight material as suita le rubber cloth,or of any other material that is sufficiently yieldable and willotherwise subserve the purposes required.

-The layers of the walls are securedtogether at their ends and atintervals as desired, preferably to form circumferential expansionchambers 62, between them, and in a manner so that the resultantdepressions that occur in the o'uter'surface ofthe expansibleelementwill course irregularly around the deflector with respect to aconstant lane trans verse to the axis of rotation. T ese depressions mayalso occur in shorter lengths with an undcpresse'd s ace between them.Both of these forms 0 depression are shown in Fig. 8 01 the drawing. Theimportanceof der to bring, all parts of the separating surface withrespect to which the expansible 1 element operates under or in operatingfrictional proximity to those parts 'of the expansion element which areexpanded, lyingetween the depressions. The fastening together of thesedouble or multiple layers of the wallsma be eflected in any suitable.way desired, ut I have employed stitching or sewin for this purpose andprefer to coat the stitc mg over with some substance as rubber toprevent leakage. The inner layer of the .wal of this expansible elementwhen inplace on the deflector vessel, rests closely against the exteriorof the vessel and the outer layer is their expansible outward by liquidthat isintroduced during operation from the channels 11, through theconnections as illustriited.

The rings containing( the channels 11 may be located properly withrespect t the expansion chambers so that two or more of said chambersmay be connected by suitable conhaving the depression occur 1n a brokenor irregular course Is in orp the expansible element with extendedyieldable ends 64 adapted to be folded over on the top and bottom endsof the part of the deflector vessel on which these elements arerespectively' carried as shown in Fig. 11, and I secure rings 65 and 66over these respective folded ends to tightly hold themin place. These"rings may be secured when in place in any suitable desired way as byscrews 67, and if it is desired to remove the'exp-ansible element theserings must first be removed.

What I regard as new and desire tosecure by Letters Patent is:

1. In a centrifugal ore separator, the combination of a rotatablememberv having a separating surface, a member differentially rotatablethereto in part forming with the first member a se arating passage, thesecond member em odying a comparatively rigid supporting element and anexpansible element in proximit to the separating surface, which expansibe element has walls comprising multiple yieldable layers forming anexpansion chamber interposed between them, one of said layers beingadapted tov be expanded by liquid pressure and means adapted to supplyliquid for effecting said expanding pressure, substantially asdescribed.

2. In a centrifugal ore separator, the cornbination of a rotatablemember forming one Wall of a separating assage, and a memberdifferentially rotatab e thereto, in part forming the separatingpassage, which is adapted to contain a body of liquid 'while inoperation, the second member embodying a com-.

paratively rigid supporting element and an element with walls havingmultiple yield- I able layers forming an expansion chamber interposedbetweenv them and being adapted to be expanded by liquid pressure and tobe periodically compressed by pressure of liquid in the separatingpassage, substantially as described.

'3. In a centrifugal ore separator, the combination of a rotatablemember having a separating surface, a member difierentially rotatablethereto in part forming with the first member a separating passage, thesecond member embodying a comparatively rigid supporting element and anelement in proximity to the separating surface the second element havingwalls with multiple yieldable layers secured together air-inter- .valsand forming liquid holding cha mbers between said yieldable layers, oneof said layers adapted to be r xpanded by liquid pressure and meansadapted to supply liquid to said chamber, substantially as described.

- 4. In a centrifugal ore separator, the com;

rotatable thereto in part forming with the first member a separatingpassage,.the secgether forming an exterior ond memb' eiembodying anexpansible element in proximity to the separating surface, said elementhaving layers with an expansion chamber between them, saidlayers beingsecured together in a course circumferentially irregular with respect toa constant p ane transverse to the axis of rotation and means adapted tosupply liquid to the expansion chamber, substantially as described. l v5. In a centrifugal ore separator, the combination of a rotatable memberhaving a separating surface, a member differentially rotatable theretoin part formingwith the first member aseparating passage, the secondmember embodying a yieldable i'riot opal washing element having multiplewalls with an expansion chamber interposed between them, said wallsbeing fastened todepression extend ng circumferentially in an irregulareeui se with respect to a constant plane transverse to the axis ofrotation, one of said walls being adapted to operate between two bodiesof liquid under pressure and to be expanded or contracted by therelatively varymg pressure. of the two bodies of liquid and meansadapted to supply "liquid 1 to both sides of said yieldable wall,substantially as described. V 6. In a centrifugal ore separator, thecome bination of a rotatablememberhaving a separating surface, a memberdifferentially rotatable thereto in part'forming With said walls withmultiple,

; first member a separating passage, the sec?- end member embodying asupporting elel ment and an element in proximity to the i separatingsurface, the second element having walls with multiple yieldable' layerswith an expansion chamber interposed between said layers, the layersbeing secured together forming depressions on its outer surface, one ofsaid layers adapted to be expanded by liquid pressure and means adaptedto sup ply liquid to said chamber,substantially as described.

'7. Ilnv a centrifugal ore separator, the combination. of a rotatablemember forming one wall of a separating passage, a member difpressed bypressure of the liquid inthe separating channel and adjustable automaticmeans adapted to limit the expanding pres-- sure on said second element,substantially as described.

PHILIP Ff PECK. Witnesses M. Freon, N. H. PnoK.

ferentially rotatable thereto, in part forming having with an lit uidressure and to be Jeriodicall com-

